var fact = "\(courseName) in \(language) with \(software) is so fun! \(emotionEmoji) & we are using swift with version \(swiftVersion)" // So it will read as "iOS Development in Swift with Xcode is so fun! &#x1f60d; & we are using swift with version 3.0"

String Properties & Call methods using dot notation / operators

Here is how to check if s string is empty

fact.isEmpty // false

Convert all characters of string into upper / lower case

var name = "TheIronMan"
name.lowercased() // It will appear as "theironman"
name.uppercased() // It will appear as "THEIRONMAN"

Here is how we can compare if two string are identical for this we will use the logical equivalent (==) operator

let mySchool = "Harvard"
let yourSchool = "Stanford"

mySchool == yourSchool // false

I hope this blog post will help you to better understand Strings in Swift Programming Language,